Automobile-heater.



P. W. DILKS, D. REYM & E. E. DU PONT. AUTOMOBILE EEATEE. APPLICATIONFILED AUG. 26, 1910. 999,487 Patented Aug. 1, 1911.

2 SHEETS-SHEET 1.

I'. W. DILKS, D. REYAM & E. E. DU PONT. AUTOMOBILE HEATER'.

APPLICATION FILED AUG. 2 6, 1910.

999,487. Patented Aug. 1, 1911.

2 SHEETS-SHEET 2.

wlTNEssEs 'i/1MM M INV NTURS.

on.. T1 U UNITED sTATEs PATENT oEEioE.

FRANK W. DILKS, 0F' '.PHILADELHI'A, PENNSYLVANIA, AND DAVIDA'REYAM ANDEUGENEE. :DU PONT, OF WILMINGTON, DELAWARE, ASSIGNORS TO THE INTERNA-TIONAL RADIATOR COMPANY, 0F WILMINGTON, DELAWARE, A CORPORATION OFDELAWARE.

AUTOMOBILE-HEATER.

Speoioation of Letters Patent.

Patented Aug. 1, 1911.

Application led August 26, 1910. Serial No. 579,066.

To all whom 'it may concern:

Be it known that we, FRANK W. Dmns, a citizen of the United States,residin in the city and county of Philadelphia, State of. Pennsylvania,and DAVID REYAM and EUGENE E. DU PONT, both citizens of the UnitedStates, residing in the city of Wilmington, county of Newcastle, Stateof Delaware, have invented a new and useful Automobile-Heater, of whichthe following is a specification.

Our present invention relates .to heating devices which are especiallyadapted to be employed in conjunction with motor vehicles, motor boatsor other structures wherein an engine of the explosion type is employed,and the main object of our invention is to utilize for further heatingpurposes the heat present in the exhaust of an explosive engine whichunder ordinary conditions is wholly lost.

As is well known to those skilled in the ait, in the operation ofautomobiles, motor boats and similar devices, and particularly those ofthe explosive engine type, the exhaust from the engine is expelled tothe atmosphere at an exceedingly high temperature, and in passingthrough the exhaust conduit the latter is heated to a comparatively hightemperature, in some cases the same being heated to approximately a redheat, and the main object of our present invention is toutilize thisheated surface and direct `a current of heated air into a compartment ofthe motor vehicle, boat or other structure in conjunction with which theheater is employed.

To the above ends our invention consists of a novel and simpliiiedheater which is adapted to utilize the heat absorbed from the exhaustconduit of an explosive engine.

It further consists of other novel features of construction, all as willbe hereinafter fully set forth.

For the purpose vof illustrating our invention, we have shown in theaccompanying drawings, one form thereof which is at present preferred byus, since the same has been found in practice to give satisfactory andreliable results, although it is to be understood that the variousinstrumentalities of which our invention consists, can be variouslyarranged and organized and that our invention is not limited to theprecise arrangement and organization of these instrumentalities asherein shown and de. scribed.

Figure 1 represents a side elevation of an automobile having a heaterembodying our mvention in o erative relation with respect thereto. ig. 2represents a lon itudinal section of the heater in assemble positionwith respect to the exhaust conduit. Fig. 3 represents a section on line:v -w, Fig. 2. Fig. 4 represents a section on line y -y, Fig. 2. Figs.5, and 6 represent plan views of portions of the outer casing. Fig. 7represents a side elevation showing more clearly the manner in which thesections of the heater casing'are united together. Fig. 8 represents alongitudinal sectional view of our novel heater in assembled positionwith respect to an exhaust muilier.

Similar numerals of reference indicate corresponding parts in thefigures.

Referring to the drawings: 1 designates the inner 'casing of a heaterembodying our invention, which for convenience of assembling ispreferably constructed in sections, and comprises an upper section 2 anda lower section 3, each of which is provided with outwardly extendingflanges 1 which terminate in tubular members as knuckles which closelybut freely interit side by side as most plainly, shown in Fig. 7. Thesemembers 5 are alternately disposed on their respective sections, so thatwhen the two sections are in assembled position, the tubular members 5will interiit and aline in such a manner that a locking rod 6 may bepassed therethrough, and in order to provide an airtight joint asuitable packing 7 is preferably employed.

The casing 1 is provided with a desired number of perforations locatedat a suitable point thereon, and for purposes of illustration, we haveshown these perforations or apertures as located iny the under section3. These perforations or apertures 8 are for the purpose of permittingfresh atmospheric air to enter the interior of the casing 1 into contactwith the exhaust conduit 9, which, as will be apparent from Fig. 2, issurrounded by the casing l.

10 and 11 designate outwardly extending flanges or collars preferablyintegral with the casing sections 2 and 3 respectively, said flangesbeing of such diameter that they will engage the exhaust conduit 9 and serve as a support for the closed ends of the casing 1.

12 designates rings or sleeves which, in the present instance,arepreferably made in sections and having on their outer ends the inturnedwalls or flanges 15 with openings 'centrally therein adapted toit overthe ose the anges 10 andexhaust pipe 9 and inc 11, the same being heldin assembled position by means of the fastening devices 13.

14 designates set screws carried by the supporting rings or sleeves 12which are adapted to engage the ianges 10 and 11 to maintain the partsin assembled position, and in order to prevent any leakage of the jointwe preferably employ suitable packing which encircles the adjacentportions of the conduit 9, and is interposed between the ends of saidcollars l0 and 11 and the encircling inturned ianges 15 of said sleeves12, thus rendering said joints tight, and preventing the leakage of hotair thereat.

The casing 1 is provided with an outlet 16 preferably rectangular inform and provided with a conduit 17, to which latter is suitablyconnected a conduit 18 which leads to a register 19 or other point ofutilization of the heat absorbed from the exhaust conduit 9, and in thepresent instance we have shown this as leading lto a register locatedwithin the body of the automobile.

In order to prevent loss of heat due to the radiation thereof from theexterior of the casing 1, we preferably surround the same withinsulating material, such as for example, asbestos or magnesia packing20, which is held in position by means of an outer casing 21, whichlatter, for purposes of illustration we haveshown as vbeing formed insections, one of the sections being provided with the-.tongues 22 whichco-act with the slots 23 -tomaintain the outer casing 21 in assembledposition. It will be seen that the outer casing 21 with the intermediatepacking 20 forms a jacket for the heating chamber, said chamber beingadapted first for the entrance of fresh air thereinto, and next, thedischarge of the same into the body of the vehicle in heated condition,the air being heated by the said conduit 9 as has been stated. Thecasing 21 may be removed by disconnecting the tongucs 22 from the slots23, when the sections or the former are separated, it being evident thatsaid tongues are pliable and bendable for their. purpose. The casing 1may be removed by withdrawing the rods 6 from the tubular ears ormembers 5 when the sections of said casing are separated. v

In the embodiment seen in Fig. 8, we have shown our vnovel heater asbeing employed in conjunction with a muffler 24 which is located at asuitable point on thel exhaust conduit 9.

The operation of our novel heater will now be readily apparent to thoseskilled in this art, and is as follows A current of air is maintainedthrough the casing. by the movement of the vehicle and the naturaltendency of the hot air to rise. "When the vehicle is at rest the air isbrought into the compartment to be heated bythe natural tendency of thehot air in the casing to risc and passes through the casino' from oneend to another, the amount of air delivered at the register beingsuilicient for the purposes of heating within the desired compartment,whether the automobile or other explosive engine driven vehicle is inmotion or at rest. Whether forced or rising naturally, the current ofair enters the perforations or apertures 8 in the casing 1, and inpassing through the casing absorbs the heat from the exhaust conduit 9,and the air in its heated condition then passes out through the conduits17 and 18 to the register 19 or other point of utilization within thecompartment which is to be heated.

Our novel device is particularly well adapted for employment inconnection with automobiles having a closed body, and the temperaturewithin the same is raised toa considerable degree above that of theoutside air, and the automobile is'v made exceedingly comfortable foruse in cold weather.

It is to be noted that the heated air is free from noxious gases or anyimpurities, sincek the device'i's'supplied with pure atmospheric airwhichis heated only by its contact with the outside of the exhaustconduit and thenecessary to change in any manner the generalconstruction or operating mechanismof the motor vehicle, boat or otherstructure v1n conjunction .with which the same is employed, and 1t issimply necessary to provide a suitable register in the compartment whichit is desired to heat.

It willnow be apparent that we have devised a novel and usefulconstruction of an automobile heater which embodies the features ofadvantage enumerated as desirable in the statement of the invention andthe above description, and while we have, in the present instance, shownand described a preferred embodimentthereof which has been -found inpractice to give satisfactory and conduit of an engine of a motorvehicle, a heating casing having a fresh air inlet and a hot air outlet,out-turned collars on the ends of said casing, sleeves encircling saidcollars, said sleeves having inturned flanges on the outer ends thereof,and set screws in said sleeves adapted to vbear against said collars,said casing being adapted t0 surround a portion of said exhaust conduitand said collars, and said inturned flanges of said sleeves beingadapted to embrace tightly said conduit.

2. In a heater applicable to an exhaust conduit of an engine of a motorvehicle, a heating casing yhaving a fresh air inlet and hot air outlet,the same being formed of sections and having means for connecting thesections, out-turned sectional collars on the ends of said casing,sleeves encircling4 said collars, said sleeves being formed of sections,and having means for connecting the same, said sleeves having inturnedflanges on their outer ends, and set screws in said sleeves adapted tobear against said collars, and said casing being adapted to surround aportion of said conduit, and said collars and said inturned flangesofthe sleeve being adapted to embrace tightly said conduit.

FRANK W. DLKS. DAVID REYAM. EUGENE E. DU PONT.

Witnesses:

E. M. PRINCE, ALFRED TAIT.

